# the ones by the cat were the main ones, but all of the hangers should be in good shape-->

Posted by Matt (93SE) on September 16, 2003 at 23:59:52: In Reply to: exhaust hangers are good, but i'm getting some nasty rattling from the front end... posted by lophix on September 16, 2003 at 23:51:17: otherwise, the exhaust pulls on the manifolds to hold itself up. that's why a lot of the studs break. you'll also note 99% of them break on the outside corners of the manifold, since that's where the most stress and movement is. some of it is from heat/warpage, but some is from stress on the y pipe pulling on them. if you're hearing noise down there, I would also check the flange gaskets between the Y and manifolds. often the mechanics don't replace them and they WILL leak if you don't. sometimes you can pull the Y off once or twice before they leak, but mine leak all the time now. I'm just too cheap to buy new ones. (a whole $2.) Also could be a messed up flex section on the pipe. if the leak is blowing exhaust up against the floorboard, you could be hearing that. there's always one easy way to tell.... fire the engine up and stick one of the vacuum hoses off the manifold into a bottle of tranny fluid. let it suck up a couple ounces and wait till the smoke starts pouring out of the exhaust. have a fan ready to blow it out of the way, but doing that should let you see where the exhaust leaks are. it's the redneck way of looking, but it works. (kinda like lighting a match to try to find a gas leak, but not quite so dangerous. ;) Replys: ok will do..mall it is tomorrow to blow some smoke... lophix (91se) 00:13:47 9/17/2003 (0)

Name: |
E-Mail |
Car: |
Subject |
Message:
: otherwise, the exhaust pulls on the manifolds to hold itself up. that's why a lot of the studs break. you'll also note 99% of them break on the outside corners of the manifold, since that's where the most stress and movement is. some of it is from heat/warpage, but some is from stress on the y pipe pulling on them. : if you're hearing noise down there, I would also check the flange gaskets between the Y and manifolds. often the mechanics don't replace them and they WILL leak if you don't. sometimes you can pull the Y off once or twice before they leak, but mine leak all the time now. I'm just too cheap to buy new ones. (a whole $2.) : Also could be a messed up flex section on the pipe. if the leak is blowing exhaust up against the floorboard, you could be hearing that. : : there's always one easy way to tell.... fire the engine up and stick one of the vacuum hoses off the manifold into a bottle of tranny fluid. let it suck up a couple ounces and wait till the smoke starts pouring out of the exhaust. have a fan ready to blow it out of the way, but doing that should let you see where the exhaust leaks are. it's the redneck way of looking, but it works. (kinda like lighting a match to try to find a gas leak, but not quite so dangerous. ;)